Know the landed cost before you order
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A full 3-inch connection for your Hellcat build
If your Hellcat exhaust is being built around full 3" pipework, choose the Kooks kit with a 3" rear outlet. It combines 2" long tube headers and H.O. GREEN catted connections, keeping the front conversion matched to that larger rear system instead of reducing to the factory outlet.
SKU: 3103H641
Choose the full-size rear interface
3103H641 uses 2" primaries, 3" collectors and 3"-outlet H.O. GREEN connection pipes. The rear exhaust needs a matching 3" connection. For a factory-style rear interface, the separate 3103H640 kit uses a 2-3/4" outlet.
Match the upgrade to your Hellcat
The kit is for the 6.2-litre supercharged Charger and Challenger Hellcat applications. H.O. GREEN gives you the appropriate high-output catalyst family for this kind of engine. Plan the headers, front pipes and rear system together so the finished exhaust matches your build.
Tuning for your exhaust upgrade
We recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. Contact us to discuss the right tuning route for your vehicle.
Vehicle fitment
| Years | Vehicle / trim | Engine | Applicable SKU | Fitting conditions |
|---|---|---|---|---|
| 2021-2023 | Dodge Charger SRT Hellcat Redeye Widebody | 6.2L V8 | 3103H641 | |
| 2021-2023 | Dodge Charger SRT Hellcat Widebody | 6.2L V8 | 3103H641 |
Ordering and delivery
Estimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.
Technical specifications
| Specification | Details |
|---|---|
| SKU | 3103H641 |
| Application | Charger Hellcat 6.2L; the two listed 2021-2023 Widebody applications |
| Material | 304 stainless steel |
| Headers | 2" primaries; 3" collectors |
| Catalysts | H.O. GREEN |
| Rear outlet | Full 3" outlet for a matching aftermarket exhaust |
| Rear exhaust requirement | Matching 3" system; does not connect directly to OEM exhaust |
Frequently asked questions
Will it connect straight to the factory exhaust?
This version has a full 3" rear outlet and needs a matching rear system. The OEM-outlet kit is 3103H640.
What is included?
The 2" long tube headers and matching H.O. GREEN catted front connection pipes.
